Calorie burning exercises for people in wheelchairs?

Help...I need some sort of exercise for someone that can't walk

Just pushing the Wheelchair up ramps or steps can give your Upper body a work out as well as your lungs. Also pushing down on the arm rests of the w/c and trying to lift your bottom of the seat. There are also lots of dumbbell exercises for strength, use a lighter weight and do more reps.
Also if you have a street with a big hill, try and climb it in a W/C. Resterators (arm bikes) are OK but try doing more active activities, that a person will stay with longer and mix it up.
If the person is to weak to push their own chair. Have them try and blow up balloons for lung strength, Try Horse shoes, or other activities. Make him pick up the horseshoes himself if he is able. Be creative and have fun and keep moving

There is pedal excersizers for the arms, go to any medical equipment company in your town. If they don't have them in stock, the should be able to order them.
Also here is some online:
http://www.isokineticsinc.com/category/p...

They work great in rehab therapy

Get some dumbells, and do arm exercises. Maybe use a weight bench and do curls and etc. Or you could be a resitance tube with handles, and it will work with you.